The search for Malaysia Airlines Flight 370 is likely to end in June, an official has said.

The news came as families of passengers marked the fourth anniversary of the plane’s disappearance with renewed hope that the world’s biggest aviation mystery will be solved.

Malaysia agreed a “no cure, no fee” deal with US-based Ocean Infinity in January to resume the hunt for the plane, a year after the official search in the southern Indian Ocean by Malaysia, Australia and China was called off.